[Ham-Mac] Re USB Interfaces for Ham Radio

Mon, 4 Feb 2002 11:44:05 +0100

This is a real problem indeed to write a driver is specialist work and 
time
consuming and about tcp/ip is not reliable for sound .
As i mentioned in an previous mail usb is great for audio and usb 2
will be as fast as firewire now !
There are companies that make credit card readers for mac and they
could possibly offer there knowledge.
For linux there is a lot of activity to develop drivers witch could be 
helpfull
http://splorg.org/~modulo/USB/USB-WinTV-Info.html
I am looking into making a i2c driver for the UDA1335 chip in the imic
so one could solder some wire's to the i2c connector in it
http://www-us2.semiconductors.philips.com/pip/UDA1335H
rs232 with keyspan works great no problems there.

Marcel van der Bilt
Amsterdam
On Monday, February 4, 2002, at 10:24 AM, David Anderson wrote:

> on 4/2/02 4:06 am, John Rollins at [email protected] wrote:
>> So what we really need for new Macs,
>> and new computers in general(PC's are slowly dropping "legacy"
>> support also), are USB-interfaced rigs, TNC's and everything else. If
>> a KPC-3 can run off a 9v battery, why couldn't it run from USB or
>> FireWire bus power? USB developer kits are a bit expensive for low
>> end and home built stuff, they could easily and cheaply be installed
>> in commercial rigs if the major brands decided to do it. I agree that 
>> lack of
> 'legacy' serial ports on new Macs is a problem if you want to control
> equipment from your computer.
>
> However there are serial/USB adaptors available that will work 
> (KeySpan).
> They are overpriced for what they are I feel however.
>
> USB is limited to short distances unlike serial so this is a limitation.
>
> The other problem is that special USB driver software is required, so 
> even
> though a Rig in the future may have a USB interface, chances are that it
> probably won't come with a Mac USB Driver. I mean we already see this 
> with
> many consumer products and I would imagine that Ham radio would be even
> worse.
>
> I despair at the lack of real I/O available from Macs. Removing serial 
> was
> one thing, but removing sound IN jacks and also Infrared (which was 
> handy
> for syncing with Palm Pilots) is a real pain.
>
> What I would prefer to see is Ethernet and TCP/IP protocols on Ham Radio
> rigs
>
> 73
> --
> David Anderson, GM4JJJ         E-mail: [email protected]
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